80792320

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 226050048

約数和(自身を除く): 145257728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 127, 128, 140, 142, 160, 224, 254, 256, 280, 284, 320, 355, 448, 497, 508, 560, 568, 635, 640, 710, 889, 896, 994, 1016, 1120, 1136, 1270, 1280, 1420, 1778, 1792, 1988, 2032, 2240, 2272, 2485, 2540, 2840, 3556, 3976, 4064, 4445, 4480, 4544, 4970, 5080, 5680, 7112, 7952, 8128, 8890, 8960, 9017, 9088, 9940, 10160, 11360, 14224, 15904, 16256, 17780, 18034, 18176, 19880, 20320, 22720, 28448, 31808, 32512, 35560, 36068, 39760, 40640, 45085, 45440, 56896, 63119, 63616, 71120, 72136, 79520, 81280, 90170, 90880, 113792, 126238, 127232, 142240, 144272, 159040, 162560, 180340, 227584, 252476, 284480, 288544, 315595, 318080, 360680, 504952, 568960, 577088, 631190, 636160, 721360, 1009904, 1137920, 1154176, 1262380, 1442720, 2019808, 2308352, 2524760, 2885440, 4039616, 5049520, 5770880, 8079232, 10099040, 11541760, 16158464, 20198080, 40396160, 80792320]

約数ペア:

[(1, 80792320), (2, 40396160), (4, 20198080), (5, 16158464), (7, 11541760), (8, 10099040), (10, 8079232), (14, 5770880), (16, 5049520), (20, 4039616), (28, 2885440), (32, 2524760), (35, 2308352), (40, 2019808), (56, 1442720), (64, 1262380), (70, 1154176), (71, 1137920), (80, 1009904), (112, 721360), (127, 636160), (128, 631190), (140, 577088), (142, 568960), (160, 504952), (224, 360680), (254, 318080), (256, 315595), (280, 288544), (284, 284480), (320, 252476), (355, 227584), (448, 180340), (497, 162560), (508, 159040), (560, 144272), (568, 142240), (635, 127232), (640, 126238), (710, 113792), (889, 90880), (896, 90170), (994, 81280), (1016, 79520), (1120, 72136), (1136, 71120), (1270, 63616), (1280, 63119), (1420, 56896), (1778, 45440), (1792, 45085), (1988, 40640), (2032, 39760), (2240, 36068), (2272, 35560), (2485, 32512), (2540, 31808), (2840, 28448), (3556, 22720), (3976, 20320), (4064, 19880), (4445, 18176), (4480, 18034), (4544, 17780), (4970, 16256), (5080, 15904), (5680, 14224), (7112, 11360), (7952, 10160), (8128, 9940), (8890, 9088), (8960, 9017)]